What it is
Several h1s on a page blur which heading is the main one. HTML5 technically allows it, but for clarity I keep one h1 and use h2s below it. Several h1s. Not fatal (HTML5 allows it) but can dilute the primary-topic signal.
Why does multiple <h1> tags matter for AI search?
Not fatal (HTML5 allows it) but can dilute the primary-topic signal.
How do you fix it?
Prefer one clear h1.
How do you find it on your site?
- Crawl or view source and count h1 elements per page.
- Identify templates or components adding extra h1s.
- Demote secondary h1s to the appropriate level.
- Keep a single, top-level h1.
Which ranking and citation factors does it touch?
One clear h1 gives the strongest topical anchor. Multiple h1s dilute that focus.
What is the impact?
Low-medium. Consensus.
What is the evidence?
Use headings to convey clear structure. Google Search Central, SEO Starter Guide
Frequently asked questions about multiple <h1> tags
What does "Multiple <h1> tags" mean?
Several h1s.
How do you fix multiple <h1> tags?
Prefer one clear h1.